Method for making an earring



-Aug.v1'5 ,*1967 w. J. HANSON 3,336,427

. METHOD FOR MAKING A'N EARRING ori inarF'iied' Dec. 20, 1961 v 3Sheets-Sheet 1- IN V EN TOR. WALTER JOHN HANSON fyamgw ATTORNEYS 1967'w. J. HANSON 3,336,427

METHOD FOR MAKING AN EARRING Origihal Filed Dec. 20, 1961 3 Sheets-Sheet2 Fig. 5

- v gfi il xrgm/a I 2O Fig.6

INVENTOR. WALTER JOHN HANSON AT TORNEYS Original Filed Dec. 20, .1961

Aug. 15, 196 w. J. HANSON 3,336,427

METHOD FOR, MAKING AN EARRING 3 Sheets-Sheet Z- Fig. 7

IIIIIIIIIIIIIIIJIIIIII(1% '11! Fig. IO 46 26 INVENTOR. WALTER JOHNHANSON ATTORNEYS United States Patent 3,336,427 METHOD FOR MAKING ANEARRING Walter J. Hanson, Franklin, Mass., assignor to C. H. Stuart &Co., Inc., Newark, N.Y., a corporation of New York Application Nov. 19,1962, Ser. No. 238,358, now Patent No. 3,234,756, dated Feb. 15, 1966,which is a division of application Ser. No. 160,809, Dec. 20, 1961.Divided and this application Oct. 7, 1965, Ser. No. 493,757

11 Claims. (Cl. 264-156) My invention relates to a method of making anearring construction. This application is a division of my priorapplication Ser. No. 238,358 filed Nov. 19, 1962 for EarringConstruction allowed Feb. 15, 1966, now Patent No. 3,234,756 which is adivision of my prior application, Ser. No. 160,809, filed Dec. 20, 1961,for Method and Apparatus for Molding Bubbles onto Articles, nowabandoned.

In order to overcome the many disadvantages of the old vise type ofearring clamp, many innovations have recently developed in the nature ofspring actuated clamps for maintaining the earring on the lobe of theear. This development is earring construction presented inherentdisadvantages, the main one of which has been the discomfort resultingto the wearer of the earring. In order to overcome the latterdisadvantage, manufacturers have endeavored to attach resilient pads tothe spring actuated clamp for engaging the back of the ear lobes andthereby alleviate the intense pressure between the earring and thespring actuated clamp.

Because commercial practicalities demand that earrings of the costumejewelry variety be manufactured inexpensively, it has been extremelydifiicult to produce satis factory padded earring paddles or clips.Heretofore, earrings of this construction have been either totallyunsatisfactory for lack of proper glue or other adhesive between the padand the paddle or impractical because of the inordinate expense ofmanual labor in attaching pads to earring paddles. It was not until myinvention that a satisfactory earring paddle or clamp having a resilientpad bonded thereon could be manufactured inexpensively.

My invention has overcome all of the problems involved in manufacturingsatisfactory, inexpensive padded earring paddles. I have devised amethod for making an earring paddle and method for making the sameadaptable for mass production whereby a core of selected shape and sizecorresponding to the interior surface of the pad to be formed overlies acenter portion of the paddle and a plastic bubble or pad is molded overthe core and onto gripper portions around the periphery of the paddle,and thereafter the core is stripped from the paddle leaving the paddleand attached pad.

One object of my invention is to provide a method of making an earringconstruction for increased comfort to the person adorned thereby.

It is another object of my invention to provide a method of making animproved padded earring paddle in a simpler, less expensive manner thanheretofore known.

It is a significant object of my invention to provide a method of makinga padded earring paddle of the above described nature which is adaptedfor mass production.

Other objects and advantages of this invention will be particularly setforth in the claims and will be apparent from the following description,when taken in connection with the accompanying drawings, in which:

FIGS. 1-5 inclusive are side sectional schematic views of theillustrated embodiment of my invention shown in various positions duringthe melding of the hollow plastic pad to the earring paddle; r FIG. 6 isa sectional view with parts broken away taken along the lines 66 of FIG.3, looking in the direction indicated by the arrows;

FIG. 7 is a schematic view of the hydraulic circuitry controlling theembodiment illustrated schematically in FIGS. 1-5 inclusive;

FIG. 8 is a schematic view of the valve controls for the hydrauliccircuitry illustrated in FIG. 7;

FIG. 9 is an enlarged planar view of an earring clamp or paddle to whicha hollow plastic pad is adapted to be molded; and

FIG. 10 is a sectional view taken along the line 10-10 of FIG. 9 lookingin the direction indicated by the arrows including the hollow plasticpad molded to the paddle illustrated in FIG. 9.

With reference to FIG. 1, the illustrated embodiment of my inventionincludes a pair of companion molds, a lower mold 20 and an upper mold 22vertically or axially spaced from each other. The lower mold 20 isprovided With a recess or cavity 24 adapted for receiving and supportingan article or earring paddle 26. I provide a core 28 having a padforming or bubble forming portion 30 of selected shape and sizecorresponding to the desired interior surface of the resilient pad orbubble to be molded. Core 28 is adapted to overlie the article orearring paddle 26 in the manner illustrated in FIGS. 2 and 3.

Upper mold 22 is provided with a recess or cavity 31 of a selected shapeand size corresponding to the desired configuration of the exteriorsurface of the pad or bubble to be molded. The cavities 24 and 31comprise what is referred to in the claims as a molding cavity. By meansto be described hereinafter, the companion molds 20 and 22 and coremember 28 are aligned axially along a molding axis 32 extending normalto the molding cavity (FIGS. 2 and 3), in which position the cavity 31overlies the pad or bubble forming portion 30- of core 28. After thecompanion molds 20 and 22 and the core 28 are axially aligned, the moldsare moved Vertically or axially from an open position shown in FIG. 2 toa closed or molding position shown in FIG. 3. In the molding position avoid space is provided between the upper mold cavity 31 and bubbleforming portion 30 as illustrated in FIG. 3.

When in the molding position illustrated in FIG. 3, liquid polyvinylchloride, otherwise known as plastisol, 33, being retained in a hopper35 and ranging in temperature from 350 to 400 F., is hydraulicallyforced through an injection nozzle 37, a sprue hole 38, a lateralhorizontally disposed main runner 39 and a plurality of longitudinal,horizontally disposed runners 40 to a plurality of horizontally spacedvoids between a corresponding plurality of horizontally spaced uppermold cavities 31 and the bubble forming portions 30. In this manner, abubble or pad 42 is molded onto the article or earring paddle 26. Thepad or bubble 42 is permitted to solidify. I have used the term plasticin the claims to include not only plastisol but all moldable resilientmatter such as rubber.

With reference to FIG. 9 I have illustrated the preferred arrangementfor permanently bonding the resilient pad 42 to the paddle 26 byproviding raised gripper portions 44 (FIGS. 1 and 10) partially severedor stamped from the paddle 26 and bent or formed as illustrated in FIGS.9 and 10. The gripper portions 44 are formed on the inner face such thatthey extend above and generally along the inner face of the paddle 26 sothat the resilient pad 42 may be molded around the shaped portion asillustrated in FIG. 9. This arrangement provides openings in the paddle26 through which portions 46 of the pad are molded, as shown in sectionin FIG. 10, for rigidly securing the pad 42 on the paddle 26. Thus, itwill be understood that the central area of the pad 42 overlies and isin spaced relationship to the paddle 26. The paddle 26 is adapted to beattached to the earring in a well-known manner. For example, the paddle26 is provided with a pair of clips or tines 21 terminating in lateralportions 23 adapted to be rotatably received in coactive portions on theearring (not shown) while a central spring member 25 biases the paddle26 into engagement with the earring (not shown).

I shall now describe more in detail the illustrated embodiment of myinvention, the operation of which is shown sequentially in FIGS. l-Sinclusive. The illustrated embodiment of my invention is adaptable foruse with what is commonly known in the art as a vertical moldingmachine. The upper mold 22 is rigidly secured to a stationary platen(not shown) of a typical vertical molding machine.

The hopper 35 is rigidly mounted above mold 22 for retaining the liquidplastic 33. The flow of plastic 33 is controlled by hydraulic powertransmitted through a connecting rod 51 to a piston 50 mounted in thehopper 35. The lower mold 20 is supported on a movable lower platen 52actuated by hydraulic power transmitted through a connecting rod 54 in amanner hereinafter described.

Lower platen 52 is provided with a vertically disposed projection 55being received by a vertically disposed slot 57 of lower mold member 20.Lower mold 20 is horizontally or linearly slidable with relation tolower platen projection 55 by means of hydraulic power, hereinafterdescribed, being transmitted through a connecting rod 58.

Core 28 is rigidly mounted to a core block 59 having a verticallydisposed slot 60 receiving the upper end of lower platen projection 55.

I provide a stripper plate 62 rigidly mounted in a vertical position tothe left-hand face of a shouldered portion of lower mold 20.

The upper mold 22 and the lower platen 52 remain in axially alignedposition with respect to the molding axis 32. The lower mold 20 and coreblock 59 are horizontally or linearly slidable with respect to themolding axis 32 between an aligned position illustrated in FIGS. 2, 3and 4 and a stripped position shown in FIGS. 1 and 5. As the lower mold20 is hydraulically moved to the left from the FIG. 1 position to theFIG. 2 position, first the stripper plate 62 engages the right verticalface of core block 59 and, then, the right vertical face of slot 60engages the right vertical face of projection 55, in which position allparts are axially aligned with respect to the molding axis 32. Thusalignment relative to the molding axis 32 is accomplished by means ofthe rigid mounting of upper mold 22 and lower platen 52, with projection55 limiting the sliding motion of lower mold 20 and core block 59 andstripper plate 62 and portion of core block 59 intermediate the rightvertical f-ace thereof and the slot 60 providing proper spacing.

One of the significant novel features of my invention is the provisionof the resilient biasing means or compression spring loaded ball 64,intermediate lower mold 20 and core block 59, thereby floating the core28 above the paddle 26 as the core block 59 and lower mold 20 are slidfrom the stripped position of FIG. 1 to the aligned position of FIG. 2.This eliminates any possibility of the core 28 ejecting the paddle 26during leftward sliding movement. It will be understood that a resilientbiasing means could be provided between upper mold 22 and core block 59in lieu of the one illustrated at 64.

After the parts are axially aligned with respect to molding axis 32 asillustrated in FIG. 2, hydraulic power transmitted to the lower platen52, through a connecting rod 54, elevates lower platen and all partscarried thereby from an open position of FIG. 2 to a closed position ofFIG. 3, thereby bringing overlying pad forming por tion 30 of the core28 into engaging relationship with paddle 26. The upper mold 22 isprovided with a vertically 4 disposed lateral slot 66 adapted to receivethe upper end of stripping plate 62 when in the closed position.

Lower mold 20 is provided with longitudinally disposed slots 68,illustrated in longitudinal cross-section in FIGS. 1 and 2. Slots 68extend through an upwardly projecting portion 70 of lower mold 20 toreceive the core 28 as the lower platen 52 is elevated from the openposition of FIG. 2 to the closed position of FIG. 3.

With reference to FIG. 6, the stripper plate 62 is provided withopenings or apertures 72 of height sufficient to permit the desiredvertical resilient movement of the core 28 and of sufficient width topermit sliding movement of the core between the stripped position ofFIG. 1 and the aligned position of FIG. 2. However, the most criticalmeasurement of the opening 72 is that it be not as wide as the paddle26, thereby permitting the paddle 26 to be stripped from the core 28 asthe lower mold is actuated from the aligned position of FIG. 4 to thestripped position of FIG. 5. The bottom edge of the stripper plate 62 isillustrated in broken lines at FIG. 6 at 62-A.

I shall now describe the hydraulic circuitry by which the piston 50,louver mold 20 and lower platen 52 are hydraulically controlled. Withreference to FIG. 7, I have provided a simple hydraulic circuitgenerally, comprising; an injection cylinder 73, housing a.hydraulically controlled piston 74 to which connecting rod 51 isattached; a lower mold control cylinder 76 in which is housed ahydraulically controlled piston 78 rigidly connected to connecting rod58; and a lower platen control cylinder 79 in which is housed ahydraulically controlled piston 80 rigidly connected to connecting rod58.

Each of the pistons 74, 78 and 80 are hydraulically controlled by theflow of oil from control valves 82, 84 and 86 respectively. These valvesadmit oil to the selected end of each of the respective cylinders inwhich the pistons are housed. Each valve is provided with a drain 90.The over-all hydraulic circuit is provided with a pressure control valve91, a relief valve 92 and accompanying drain 95, a pump 97 controlled bya motor 98 and a filter 99 for filtering the oil recirculating throughthe pump.

Each of the control valves 82, 84 and 86, as illustrated in FIG. 8, arecontrolled by cams 100, 102 and 104 respectively. These cams are rigidlymounted on a cam shaft 106 being driven by a motor 108 in turnautomatically controlled by a timer 110.

The cam shaft 106 is driven in a clockwise direction as viewed in FIG. 8and as indicated by the arrow 112. Cams 102 and 104 have a low,intermediate and high portions, whereas cam only has the low andintermediate portions.

Each of the valves 82, 84 and 86, respectively, have plungers 114, 116and 118 illustrated in their neutral position in FIG. 8, in whichposition oil does not flow to either side of the pistons controlledthereby. As the cam shaft continues to move counter-clockwise,approximately 60, plunger 116 rides up on a high cam portion 120 therebypermitting oil to flow through a line 122 to the righthand side ofpiston 78 thereby sliding lower mold 20 to the left as viewed in FIG. 1toward the aligned position of FIG. 2.

Upon reaching the aligned position, plunger 116 drops onto theintermediate portion 124 stopping oil flow through valve 84, and plunger116 of valve 86 drops from its intermediate portion 126 onto a lower camportion 128, after the cam has rotated approximately 120 from theposition illustrated in FIG. 8. Oil is thereby permitted to flow througha line 130 to the lower portion of cylinder 79 forcing piston 80 andlower platen 52 upwardly from the open position of FIG. 2 to the closedposition of FIG. 3.

Plunger 118 then rides up on intermediate portion 126, thereby stoppingthe flow of oil through valve 86, and plunger 114, after the cam shafthas rotated approximately from the FIG. 8 position, drops from anintermediate neutral portion 131 onto a lower portion 132. Oil now flowsthrough a line 133 to the upper portion of cylinder 73 above piston 74thereby forcing piston 74 and piston 50 downwardly to inject plastic 33through nozzle 37 and conduit means comprising sprue hole 38, lateralrunner 39 and longitudinal runners 40 into upper mold cavities 31.

Plunger 114 then rides up to the intermediate neutral portion 131 again,at which point the cam shaft has rotated approximately 240 from theposition illustrated in FIG. 8, and plunger 118 rides up on a highportion 134 of cam 104, thereby permitting oil to flow through a line135 to force piston 80 and lower platen 52 downwardly from the closedposition shown in FIG. 3 to the open position shown in FIG. 4.

When plunger 118 drops off of the high portion 134 onto the intermediateportion 126 of cam 104, plunger 116 drops onto a lower portion 137 ofcam 102, at which time, cam shaft has rotated approximately 300 from theposition shown in FIG. 8. Plunger 116 now permits oil to flow through aline 138 to the left hand side of piston 78 thereby sliding lower mold20 from the aligned position of FIG. 4 to the stripped position of FIG.5. This completes one entire cycle and the cam shaft will have rotated afull 360 and returned to the position shown in FIG. 8.

While it is not shown, it will be understood that there is a gate,usually provided between the nozzle 137 and sprue line 138 to cut offthe flow of plastic from the hopper 35 after the downward movement ofpiston 50 is stopped. In order to refill the hopper 35 with plastic 33the piston 50 is elevated, either by manual or solenoid control of theplunger 114 to raise plunger 114 from the neutral position shown in FIG.8, in order to permit oil to flow through a line 139 below piston 74.

It is obvious from the above detailed description of the apparatusembodying my invention and its function that the process of molding thehollow plastic bubble or pad 42 to the paddle 26 is accomplished in thefollowing manner. Commencing with the initial stripped position shown inFIG. 1, the operator manually inserts the paddle 26 into the lower moldcavity 24 while the plungers 114, 116 and 118 ride on the intermediateneutral portions of the respective cams. Thereafter, the lower mold 20is hydraulically slid leftwardly to the aligned position of FIG. 2 bythe apparatus above described. In this position the bubble formingportion 30 of the core 28 overlies a selected central portion of paddle26.

The hydraulic circuitry above described then elevates the lower platen52 from the open position of FIG. 2 to the closed position of FIG. 3,thereby bringing the core 28 into engaging relationship with the article24, in opposition to the biasing means 64, and the upper mold intoengaging relationship with the core 28 and the lower mold 20. Thus, allparts arrive at the molding position.

By means of the hydraulic circuitry above described, plastic 33 isforced through nozzle 37 (FIG. 1) into the void area intermediate theupper mold cavity 31 and the pad forming portion 30 of the core 28,thereby forming the pad 42 as illustrated in FIG. 3.

Suflicient molding time is allowed to solidify the pad 42 on the gripperportions 44 formed around the periphery of paddle 26. Thereafter bymeans of the hydraulic .circu itry above described, the lower platen 52is retracted from the closed position of FIG. 3 to the open position ofFIG. 4 and biasing means 64 once again float the core 28 as shown inFIG. 4, thereby raising the paddle 26 and attached pad 42.

By means of the above described arrangement of parts, plastic runners140 (FIG. 4 and 5) are formed in sprue line 38 and lateral andlongitudinal runner 39 and 40 by which all of the plurality of pads 42are interconnected. The hydraulic circuitry above described then slidesthe lower mold 20 to the right from the aligned position of FIG. 4 tothe stripped position of FIG. 5. The projection 55 limits the slidingmotion of the core block 59 and attached core 28 sufficiently less thanthe permitted sliding stroke of the lower mold 20, as controlled byhydraulic cylinder 76 (FIG. 7), permitting the stripping plate 62 tostrip the paddle 26 and attached molded pad 42 from the core 28. Thepaddle 26 and attached pads drop back into the lower mold cavity 24 orat random.

The operator manually breaks each of the plurality of paddles 26 andattached pads 42 away from the plastic runner 1140. When the apparatushad reached the position shown in FIG. 5, identical to that shown inFIG. 1, all parts are ready for a new cycle.

While I have shown and described a preferred embodiment of my invention,it will be apparent that various changes and modifications may be madetherein, particularly in the form and relation of parts withoutdeparting from the spirit of my invention as set forth in the appendedclaims.

I claim:

1. A method for making a pad having a wall bonded to but extending inspaced relationship above an earring paddle comprising the steps of:

(a) providing pad gripper means on said paddle;

(b) overlying said paddle with a core member of selected shape and sizecorresponding to the interior surface of a pad to be formed on saidpaddle,

(c) molding a pad over said core member and into bonding relationshipwith said gripper means, thereby forming an interior pad wall extendingin spaced relationship above and overlying said paddle and bonded tosaid gripper means of said paddle, and

(d) stripping said paddle with attached pad from said core member.

2. A method for making a pad having a wall bonded to but extending inspaced relationship above on an earring paddle comprising the steps of:

(a) forming gripper means on an inner face of said paddle,

(b) overlying said paddle with a core member in engaging relationshiptherewith and said core member being of selected shape and sizecorresponding to the interior surface of a pad to be formed on andoverlying said paddle,

(c) forming a pad over said core member and into bonding relationshipwith said gripper means thereby forming an interior pad wall extendingin spaced relationship above and overlying an interior paddle wall, and

(d) stripping said paddle with attached pad from said core member.

3. A method for making a pad having a wall bonded to but extending inspaced relationship above an earring paddle comprising the steps of:

(a) forming gripper means on an inner face of said paddle,

(b) overlying said paddle with a core member in engaging relationshiptherewith and said core member being of selected shape and sizecorresponding to ,the interior surface of a pad to be formed on andoverlying said paddle,

(c) molding a resilient pad over said core member and into bondingrelationship with said gripper means thereby forming aninterior pad wallextending in spaced relationship above and overlying an interior paddlewall, and

(d) stripping said paddle with attached pad from said core member.

4. A method for making a pad having a wall bonded to but extending inspaced relationship above an earring paddle comprising the steps of:

(a) forming gripper means on an inner face of said paddle,

(b) overlying said paddle with a core member in engaging relationshiptherewith and said core member being of selected shape and sizecorresponding to the interior surface of a pad to be formed on andoverlying said paddle,

(c) overlying said core member with a mold cavity member of selectedshape and size corresponding to the exterior surface of said pad,

(d) molding a resilient pad over said core into bonding relationshipwith said gripper means and intermediate said members thereby forming aninterior pad wall extending in spaced relationship above and overlyingan interior paddle wall, and

(e) stripping said paddle with attached pad from said core member.

5. A method for making a pad having a wall bonded to but extending inspaced relationship above an earring paddle comprising the steps of:

(a) forming shaped portions on an inner face of said paddle andextending above and generally along said inner face,

(b) overlying said paddle with a core member in engaging relationshiptherewith and said core member being of selected shape and sizecorresponding to the interior surface of a pad to be formed on andoverlying said paddle,

(c) overlying said core member with a mold cavity member of selectedshape and size corresponding to the exterior surface of said pad,

(d) molding a resilient pad over said core into bonding relationshipwith said shaped portions and intermediate said members thereby formingan interior pad wall extending in spaced relationship above andoverlying an interior paddle wall, and

(e) stripping said paddle with attached pad from said core member.

6. A method for making a pad having a wall bonded to but extending inspaced relationship above an earring paddle comprising the steps of:

(a) forming partially severed raised shaped portions on an inner face ofsaid paddle,

(b) overlying said paddle with a core member in engaging relationshiptherewith and said core member being of selected shape and sizecorresponding to the interior surface of said pad to be formed on andoverlying said paddle,

(c) overlying said core member with a mold cavity member of selectedshape and size corresponding to the exterior surface of said pad,

(d) molding a resilient pad over said core, into bonding relationshipwith said shaped portions and intermediate said members thereby formingan interior pad wall extending in spaced relationship above andoverlying an interior paddle wall, and

(e) stripping said paddle with attached pad from said core member.

7. A method for making a pad having a Wall bonded to but extending inspaced relationship above an earring paddle comprising the steps of:

(a) forming gripper means on the inner face along the periphery and atone end thereof,

(b) overlying a portion of said paddle surrounded by said gripper meanswith a core member in engaging relationship therewith and said coremember being of selected shape and size corresponding to the interiorsurface of a pad to be formed on and overlying said paddle,

(c) overlying said core member with a mold cavity member of selectedshape and size corresponding to the exterior surface of said pad,

(d) molding a resilient pad over said core into bonding relationshipwith said gripper means and intermediate said members thereby forming aninterior bubble pad wall extending in spaced relationship above andoverlying an interior paddle wall, and

(e) stripping said paddle with attached pad from said core member.

8. A method for making a pad having a wall bonded to but extending inspaced relationship above an earring paddle comprising the steps of:

(a) forming gripper means on the inner face along the periphery and atone end thereof,

(b) overlying a portion of said paddle surrounded by said gripper meanswith an enlarged portion of a core member in engaging relationshiptherewith, which enlarged portion is of selected shape and sizecorresponding to the interior surface of a pad to be formed on andoverlying said paddle,

(c) overlying said enlarged portion of said core member with a moldcavity member of selected shape and size corresponding to the exteriorsurface of said pad,

(d) molding a resilient pad over said enlarged portion of said core intobonding relationship with said gripper means and intermediate saidmembers thereby forming an interior pad wall extending in spacedrelationship above and overlying an interior paddle wall, and

(e) stripping said paddle with attached pad from said core member.

9. A method for molding a hollow resilient bubble having a wall bondedto but extending in spaced relationship above an article having asurface to which said resilient bubble is adapted to bond comprising thesteps of:

(a) providing gripper means on said article;

(b) overlying said surface of said article with a core member of aselected shape and size corresponding to the interior surface of abubble to be formed on said article;

(c) forming a resilient bubble over said core member and into bondingrelationship with said gripper means thereby forming an interior bubblewall extending in spaced relationship above and overlying said surface,

(d) stripping said article and attached bubble from said core member.

10. A method for making a resilient bubble having a Wall bonded to butextending in spaced relationship above an article comprising the stepsof:

(a) forming gripper means on an inner face of said article,

(b) overlying said article with a core member in engaging relationshiptherewith and said core member being of selected shape and sizecorresponding to the interior surface of a resilient bubble to be formedon and overlying said article,

(c) overlying said core member with a mold cavity member of selectedshape and size corresponding to the exterior surface of said resilientbubble,

(d) molding a resilient bubble over said core into bonding relationshipwith said gripper means and intermediate said members thereby forming aninterior bubble wall extending in spaced relationship above andoverlying an interior article wall, and

(e) stripping said article with attached resilient bubble from said coremember.

11. A method for making a resilient bubble having a 60 wall bonded tobut extending in spaced relationship above an article comprising thesteps of:

(a) forming gripper means on the inner face along the periphery and atone end thereof,

(b) overlying a portion of said article surrounded by said gripper meanswith a core member in engaging relationship therewith and said coremember being of selected shape and size corresponding to the interiorsurface of a resilient bubble to be formed on and overlying saidarticle,

(c) overlying said core member with a mold cavity member of selectedshape and size corresponding to the exterior surface of said resilientbubble,

(d) molding a resilient bubble over said core into bonding relationshipwith said gripper means and intermediate said members thereby forming aninterior 9 bubble wall extending in spaced relationship above 2,607,957and overlying an interior article Wall, and 2,683,899 (e) stripping saidarticle with attached resilient bubble 2,688,159 from said core member.2,710,629 5 2,841,863 References Cited 3,043,994

UNITED STATES PATENTS 1,589,913 6/1926 Wells 264266 X 1,943,063 1/ 1934Fenton 264274 X 2,510,091 6/1950 Dofsen et a1. 264328 X 10 10 Danielsonet a1. 264328 X Reichenbach 264328X Swartz et a1 264328 X Price 264274XGeisler 264328 X Anderson et a1. 264328 X ROBERT F. WHITE, PrimaryExaminer.

L. S. SQUIRES, T. J. CARVIS, Assistant Exiaminers.

6. A METHOD FOR MAKING A PAD HAVING A WALL BONDED TO BUT EXTENDING INSPACED RELATIONSHIP ABOVE AN EARRING PADDLE COMPRISING THE STEPS OF: (A)FORMING PARTIALLY SEVERED RAISED SHAPED PORTIONS ON AN INNER FACE OFSAID PADDLE, (B) OVERLYING SAID PADDLE WITH A CORE MEMBER IN ENGAGINGRELATIONSHIP THEREWITH AND SAID CORE MEMBER BEING OF SELECTED SHAPE ANDSIZE CORRESPONDING TO THE INTERIOR SURFACE OF SAID PAD TO BE FORMED ONAND OVERLYING SAID PADDLE, (C) OVERLYING SAID CORE MEMBER WITH A MOLDCAVITY MEMBER OF SELECTED SHAPE AND SIZE CORRESPONDING TO THE EXTERIORSURFACE OF SAID PAD, (D) MOLDING A RESILIENT PAD OVER SAID CORE, INTOBONDING RELATIONSHIP WITH SAID SHAPED PORTIONS AND INTERMEDIATE SAIDMEMBERS THEREBY FORMING AN INTERIOR PAD WALL EXTENDING IN SPACEDRELATIONSHIP ABOVE AND OVERLYING AN INTERIOR PADDLE WALL, AND (E)STRIPPING SAID PADDLE WITH ATTACHED PAD FROM SAID CORE MEMBER.